<template>
    <div>
        <div id="slider" class="mui-slider">
            <div id="sliderSegmentedControl" class="mui-scroll-wrapper mui-slider-indicator mui-segmented-control mui-segmented-control-inverted">
                <div class="mui-scroll">
                    <a :class="['mui-control-item',item.id == 0 ? 'mui-active':'']" v-for="item in cates" :key="item.id" @tap="getPhotoListByCateId(item.id)">
                        {{item.title}}
                    </a>
                </div>
            </div>
        </div>

        <ul class="photo-list">
          <router-link v-for="item in list" :key="item.id" :to="'/home/photoinfo/'+item.id" tag="li">
            <img v-lazy="item.image">
            <div class="info">
              <h1 class="info-title">{{item.title}}</h1>
              <div class="info-body">{{item.zhaiyao}}</div>
            </div>
          </router-link>
        </ul>
    </div>
</template>

<script>
import mui from "../../lib/mui/js/mui.min.js";

export default {
  data() {
    return {
      cates: [],
      list: []
    };
  },
  mounted() {
    mui(".mui-scroll-wrapper").scroll({
      deceleration: 0.0005 //flick 减速系数，系数越大，滚动速度越慢，滚动距离越小，默认值0.0006
    });
  },
  created() {
    this.getAllCategory();
    this.getPhotoListByCateId(0);
  },
  methods: {
    getAllCategory() {
      //获取所有的图片分类
      this.$http.get("getimgcategory").then(result => {
        if (result.body.status === 0) {
          result.body.message.unshift({ title: "全部", id: 0 });
          this.cates = result.body.message;
        }
      });
    },
    getPhotoListByCateId(cateId) {
      this.$http.get("getimages/" + cateId).then(result => {
        if (result.body.status === 0) {
          this.list = result.body.message;
        }
      });
    }
  }
};
</script>

<style lang="scss" scoped>
* {
  touch-action: none;
}

.photo-list {
  padding-bottom: 0;
  padding: 10px;
  margin: 0;
  list-style: none;
  li {
    background-color: #ccc;
    text-align: center;
    margin-bottom: 10px;
    position: relative;
    img{
      width: 100%;
      vertical-align: middle;
      box-shadow: 0 0 6px #999;
    }
    img[lazy="loading"] {
      width: 40px;
      height: 300px;
      margin: auto;
    }

    .info{
      position: absolute;
      color: white;
      text-align: left;
      bottom: 0;
      background-color: rgba(0, 0, 0, 0.4);
      width: 100%;
      max-height: 84px;
      .info-title{
        font-size: 14px;
      }
      .info-body{
        font-size: 13px;
      }
    }
  }
}
</style>
